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Automated detection of blood vessel structures is becoming a crucial interest for better management of vascular disease. In this paper, we propose an algorithm for vessel segmentation in digital retinal images based on integral channel features and random forests. In the first stage, preprocessing is performed to obtain the candidate pixels of vessels, then a host of simple features are extracted...
English course online learning system is designed, the function of which includes the management function (personnel management, question library management, courseware management, security management, bulletin management and resource management), online learning (PPT, teaching video, difficulty parsing, homework problem), online test (randomly selected topic, automatic marking, chapter practice)...
This paper proposes a novel technique to analyze the infrared vein patterns in the back of the hand for biometric purposes. The line-patterns are retrieved in a rotation and translation invariant manner to tackle broken line problem. A set of pair-wise angle relationships among lines are extracted to present the local structure of line pattern. In order to keep positional information as well, dynamic...
Data management has become a critical challenge faced by a wide array of scientific disciplines in which the provision of sound data management is pivotal to the achievements and impact of research projects. Massive and rapidly expanding amounts of data combined with data models that evolve over time contribute to making data management an increasingly challenging task that warrants a rethinking of...
In this paper, we propose a novel approach for palmprint matching. We retrieve line-patterns in a rotation and translation invariant manner that tackles broken line problem. The local structure of line pattern is extracted as a set of pairwise angle relationships, which are simple, invariant to translation and rotation, robust to end-point erosion and segment error, and sufficient for discrimination...
Semantic inferencing and querying across large-scale RDF triple stores is notoriously slow. Our objective is to expedite this process by employing Google's MapReduce framework to implement scale-out distributed querying and reasoning. This approach requires RDF graphs to be decomposed into smaller units that are distributed across computational nodes. RDF Molecules appear to offer an ideal approach...
The different aspects that need to be tackled in order to develop automation for machines and plants through reusing tested modules will be discussed. The development of such modules involves all disciplines and their specific variations and version management, as well as the dependencies between those variations. Version management is needed to track modifications of these different modules. Variations...
The RFID wireless communication scheme causes many security problems. In this paper, we outline possible attacks by analyzing the RFID system. We analyzed some typical security mechanisms, and pointed out the shortcomings and disparity contrasted to the EPC C1G2 standards. Further, we proposed one safer protocol which combines dynamic secret-key with the method of Duc. The protocol in accordance with...
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